I am currently using blender to make a 3D model of a design I have been developing for a class project. I know the basics when it comes to modeling, so making it isnt too much of a problem but I want it to be realistically textured like glass and i can quite get it right. I’m not sure if this has to do with the material settings, the background colours or the lighting. I want to take the rendered image of this onto photoshop when it is finished so i want the background a colour i can easily edit out of it. I have attached a photo with the rendered, unrendered model and the settings I have used. Any tips will be helpful. Also any help with rendering and texturing liquid inside it would be helpfulTips
If you wanted to make a photo-realistic glass, I would suggest checking out the cycles render engine. There are pictures in the below link which show examples of what glass can look like there.
http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Getting_Started/Tutorials
If you are set on still using blender internal then sorry I can’t help you there.
But as for a transparent background, this site here explains how to achieve that for blender internal and cycles:
(Though since you have planes in the scene, you would need to put the planes on a different layer and then could use the compositor to output only the glass layer.)
Alternatively you could just not use the planes, and instead render on a white sky background and use the alpha output from the link above.
Also you don’t need to use Photoshop for a background Image, just use the Blender Compositor In Cycles you can set the alpha value of everything that belongs to the background to zero by checking ‘Transparent’ under the Film settings in the Render Panel. Then go to compositing and blend your render with a background image by using ‘Alpha Over’ node.
Well yeah, that’s basically what MurrayTORONTO said too, I hope I made it a little bit clearer still ^^